CVE-2022-49956

HIGH EPSS 11.0%
Published Jun 18, 20251y ago · Modified Jun 17, 20262w ago
7.8 CVSS 3.1
High
Find Similar
Published Jun 18, 2025 1y ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: staging: rtl8712: fix use after free bugs _Read/Write_MACREG callbacks are NULL so the read/write_macreg_hdl() functions don't do anything except free the "pcmd" pointer. It results in a use after free. Delete them.

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
11.0% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-416 Use After Free Memory Safety

Affected Products 10

VendorProductVersionRange
linuxlinux_kernel*≥2.6.37  –  <4.9.328
linuxlinux_kernel*≥4.10  –  <4.14.293
linuxlinux_kernel*≥4.15  –  <4.19.258
linuxlinux_kernel*≥4.20  –  <5.4.213
linuxlinux_kernel*≥5.5  –  <5.10.142
linuxlinux_kernel*≥5.11  –  <5.15.66
linuxlinux_kernel*≥5.16  –  <5.19.8
linuxlinux_kernel6.0any
linuxlinux_kernel6.0any
linuxlinux_kernel6.0any

References 8

  • git.kernel.org https://git.kernel.org/stable/c/19e3f69d19801940abc2ac37c169882769ed9770
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/376e15487fec837301d888068a3fcc82efb6171a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7dce6b0ee7d78667d6c831ced957a08769973063
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9fd6170c5e2d0ccd027abe26f6f5ffc528e1bb27
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b1727def850904e4b8ba384043775672841663a1
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d0aac7146e96bf39e79c65087d21dfa02ef8db38
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/dc02aaf950015850e7589696521c7fca767cea77
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e230a4455ac3e9b112f0367d1b8e255e141afae0
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/19e3f69d19801940abc2ac37c169882769ed9770
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/376e15487fec837301d888068a3fcc82efb6171a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7dce6b0ee7d78667d6c831ced957a08769973063
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9fd6170c5e2d0ccd027abe26f6f5ffc528e1bb27
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b1727def850904e4b8ba384043775672841663a1
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d0aac7146e96bf39e79c65087d21dfa02ef8db38
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/dc02aaf950015850e7589696521c7fca767cea77
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e230a4455ac3e9b112f0367d1b8e255e141afae0
    Patch